Bibliothèque Municipale de Valenciennes, MS 320 (Liber de natura rerum)
| Latin | 
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Bibliothèque Nationale de France, lat. 16169 (De animalibus)
| Latin |
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British Library, Additional MS 11390 (Der Naturen Bloeme)
| Dutch |
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British Library, Royal MS 13 B VIII (Topographia Hibernica / Expugnatio Hibernica / Itinerarium Kambriae)
| Latin |
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Historisches Archiv der Stadt Köln, W 258A (De animalibus)
| Latin
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Koninklijke Bibliotheek, KB, KA 16 (Der Naturen Bloeme)
| Middle Dutch |
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Lippische Landesbibliothek, Ms. 70 (Der Naturen Bloeme)
| Dutch |
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National Library of Ireland, MS 700 (Topographia Hibernica / Expugnatio Hibernia)
| Latin |
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Trinity College Library (Cambridge), O.4.1 (De naturis rerum)
| Latin
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Trinity College Library (Cambridge), R.16.3 (De naturis rerum)
| Latin
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Trinity College Library (Cambridge), R.16.4 (De naturis rerum)
| Latin
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